Phan tich da thuc thanh nhan tu
xy(x+y)+yz(y+z)+zx(x+z)+2xyz
phan tich da thuc thanh nhan tu :xy(x-y)-xz(x+z)+yz(2x+z-y)
phan tich da thuc thanh nhan tu (x-y).z^3 +(y-z).x^3 +(z-y).y^3
phan tich da thuc thanh nhan tu
x^2-x-y^2-y
x^2-2xy+y^2-z^2
bai 32 va 33 sbt
lop 8 bai phan tich da thuc thanh nhan tu bang cach nhom hang tu
x^2 - 2xy + y^2 - z^2 phan tich da thuc thanh nhan tur
Phan tich da thuc thanh nhan tu
(xy-1)^2 -x^2-y^2
Phan tich da thuc thanh nhan tu: (x+y+z)^5 - x^5 - y^5 - z^5
phan tich da thuc sau thanh nhan tu ab(x^2+y^2)-xy(a^2+b^2)
